//
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// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech>
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// Copyright 2018 Capitar IT Group BV <info@capitar.com>
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//
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// This software is supplied under the terms of the MIT License, a
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// copy of which should be located in the distribution where this
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// file was obtained (LICENSE.txt). A copy of the license may also be
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// found online at https://opensource.org/licenses/MIT.
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//
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#include <string.h>
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#include <nuts.h>
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void
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test_dial_before_listen(void)
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{
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nng_socket s1;
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nng_socket s2;
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char *addr;
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NUTS_OPEN(s1);
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NUTS_OPEN(s2);
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NUTS_ADDR(addr, "inproc");
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NUTS_PASS(nng_socket_set_ms(s2, NNG_OPT_RECONNMINT, 10));
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NUTS_PASS(nng_socket_set_ms(s2, NNG_OPT_RECONNMAXT, 10));
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NUTS_PASS(nng_dial(s2, addr, NULL, NNG_FLAG_NONBLOCK));
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NUTS_SLEEP(100);
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NUTS_PASS(nng_listen(s1, addr, NULL, 0));
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NUTS_SEND(s1, "hello");
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NUTS_RECV(s2, "hello");
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NUTS_CLOSE(s1);
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NUTS_CLOSE(s2);
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}
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void
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test_reconnect(void)
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{
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nng_socket s1;
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nng_socket s2;
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nng_listener l;
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char *addr;
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NUTS_OPEN(s1);
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NUTS_OPEN(s2);
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NUTS_ADDR(addr, "inproc");
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NUTS_PASS(nng_socket_set_ms(s2, NNG_OPT_RECONNMINT, 10));
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NUTS_PASS(nng_socket_set_ms(s2, NNG_OPT_RECONNMAXT, 10));
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NUTS_PASS(nng_dial(s2, addr, NULL, NNG_FLAG_NONBLOCK));
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NUTS_SLEEP(100);
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NUTS_PASS(nng_listen(s1, addr, &l, 0));
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NUTS_SEND(s1, "hello");
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NUTS_RECV(s2, "hello");
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// Close the listener
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NUTS_PASS(nng_listener_close(l));
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// We need to wait 100 ms, or so, to allow the receiver to
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// the disconnect.
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NUTS_SLEEP(100);
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NUTS_PASS(nng_listen(s1, addr, &l, 0));
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NUTS_SEND(s1, "again");
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NUTS_RECV(s2, "again");
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NUTS_CLOSE(s1);
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NUTS_CLOSE(s2);
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}
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void
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test_reconnect_pipe(void)
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{
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nng_socket s1;
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nng_socket s2;
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nng_listener l;
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nng_msg * msg;
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char * addr;
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NUTS_OPEN(s1);
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NUTS_OPEN(s2);
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NUTS_ADDR(addr, "inproc");
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NUTS_PASS(nng_socket_set_ms(s1, NNG_OPT_RECONNMINT, 10));
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NUTS_PASS(nng_socket_set_ms(s1, NNG_OPT_RECONNMAXT, 10));
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NUTS_PASS(nng_dial(s1, addr, NULL, NNG_FLAG_NONBLOCK));
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NUTS_SLEEP(100);
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NUTS_PASS(nng_listen(s2, addr, &l, 0));
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NUTS_SEND(s2, "hello");
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NUTS_PASS(nng_recvmsg(s1, &msg, 0));
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NUTS_TRUE(msg != NULL);
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NUTS_TRUE(nng_msg_len(msg) == 6);
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NUTS_MATCH(nng_msg_body(msg), "hello");
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nng_pipe_close(nng_msg_get_pipe(msg));
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nng_msg_free(msg);
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// We have to wait a bit, because while we closed the pipe on the
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// receiver, the receiver might not have got the update. If we
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// send too soon, then the message gets routed to the sender pipe
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// that is about to close.
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NUTS_SLEEP(100);
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// Reconnect should happen more or less immediately.
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NUTS_SEND(s2, "again");
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NUTS_RECV(s1, "again");
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NUTS_CLOSE(s1);
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NUTS_CLOSE(s2);
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}
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void
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test_reconnect_back_off_zero(void)
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{
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nng_socket s1;
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nng_socket s2;
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uint64_t start;
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char * addr;
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NUTS_OPEN(s1);
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NUTS_OPEN(s2);
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NUTS_ADDR(addr, "inproc");
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// redial every 10 ms.
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NUTS_PASS(nng_socket_set_ms(s1, NNG_OPT_RECONNMAXT, 0));
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NUTS_PASS(nng_socket_set_ms(s1, NNG_OPT_RECONNMINT, 10));
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NUTS_PASS(nng_dial(s1, addr, NULL, NNG_FLAG_NONBLOCK));
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// Start up the dialer first. It should keep retrying every 10 ms.
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// Wait 500 milliseconds. This gives a chance for an exponential
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// back-off to increase to a longer time. It should by this point
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// be well over 100 and probably closer to 200 ms.
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NUTS_SLEEP(500);
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NUTS_CLOCK(start);
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NUTS_PASS(nng_listen(s2, addr, NULL, 0));
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NUTS_SEND(s1, "hello");
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NUTS_RECV(s2, "hello");
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NUTS_BEFORE(start + 100);
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NUTS_CLOSE(s1);
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NUTS_CLOSE(s2);
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}
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NUTS_TESTS = {
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{ "dial before listen", test_dial_before_listen },
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{ "reconnect", test_reconnect },
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{ "reconnect back-off zero", test_reconnect_back_off_zero },
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{ "reconnect pipe", test_reconnect_pipe },
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{ NULL, NULL },
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};
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